A review of the fatigue behavior of 3D printed polymers

Review (2019)

Authors

Lauren Safai Student
J.S. Cuellar Lopez Medical Instruments & Bio-Inspired Technology - Mechanical, Maritime and Materials Engineering
G. Smit Medical Instruments & Bio-Inspired Technology - Mechanical, Maritime and Materials Engineering
A.A. Zadpoor Biomaterials & Tissue Biomechanics - Mechanical, Maritime and Materials Engineering
Research Group
Medical Instruments & Bio-Inspired Technology (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2019 Lauren Safai, J.S. Cuellar Lopez, G. Smit, A.A. Zadpoor
DOI
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https://doi.org/10.1016/j.addma.2019.03.023
Cyclic loading Mechanical behavior 3D printing Polymers Fatigue fracture
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Published Date

2019

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Biomechanical Engineering

Research Group

Medical Instruments & Bio-Inspired Technology

Abstract

As additive manufacturing of polymeric materials is becoming more prevalent throughout industry and research communities, it is important to ensure that 3D printed parts are able to withstand mechanical and environmental stresses that occur when in use, including the sub-critical cyclic loads that could result in fatigue crack propagation and material failure. There has so far been only limited research on the fatigue behavior of 3D printed polymers to determine which printing or material parameters result in the most favorable fatigue behavior. To better understand the effects of the printing technique, printing materials, and printing parameters on the fatigue behavior of 3D printed materials, we present here an overview of the data currently available in the literature including fatigue testing protocols and a quantitative analysis of the available fatigue data per type of the AM technology. The results of our literature review clearly show that, due to the synergism between printing parameters and the properties of the printed material, it is challenging to determine the best combination of variables for fatigue resistance. There is therefore a need for more experimental and computational fatigue studies to understand how the above-mentioned material and printing parameters affect the fatigue behavior.